A 2,400 square foot house has a poor floor plan with a long, narrow layout that requires walking through bedrooms to reach other rooms. This is an example of:
Correct Answer
D) Functional obsolescence - incurable
Why this is correct: Functional obsolescence is a loss in value due to a design flaw. A poor floor plan requiring major structural changes (like moving walls) to correct is typically incurable because the cost to cure would exceed the value added by the improvement. Why the other choices are wrong: 'Functional obsolescence - curable' is wrong because a poor layout requiring significant structural alteration is not economically practical to fix. 'Physical deterioration' is wrong because this refers to wear and tear or deferred maintenance, not design flaws. 'External obsolescence' is wrong because this is caused by factors outside the property boundaries, such as a nearby nuisance. Exam tip: If fixing a flaw requires major reconstruction and is not cost-effective, it is incurable functional obsolescence.
Why This Is the Correct Answer
The poor floor plan described represents incurable functional obsolescence because correcting it would require major structural changes such as relocating walls, rerouting plumbing and electrical systems, and potentially rebuilding entire sections of the house. The cost of these extensive renovations would far exceed any increase in property value that would result from the improvements. Since the cost to cure exceeds the value added, this deficiency is classified as incurable functional obsolescence.
Why the Other Options Are Wrong
Option A: Functional obsolescence - curable
Curable functional obsolescence refers to design defects that can be economically corrected, where the cost to fix is less than or equal to the value added to the property.
Option B: Physical deterioration
Physical deterioration refers to the actual physical wear and tear of building components like roofing, flooring, or mechanical systems, not design flaws or layout problems.
Option C: External obsolescence
External obsolescence involves negative influences from outside the property boundaries, such as proximity to busy roads, industrial facilities, or declining neighborhoods, not internal design issues.
The CURE Test
CURE = Cost Under Reasonable Economics. If the cost to fix is Under what's reasonable economically (less than value added), it's Curable. If cost exceeds reasonable economics, it's inCUREable.
How to use: When you see functional obsolescence questions, immediately ask: 'Would fixing this cost more than the value it adds?' If yes, it's incurable. Major structural changes like floor plan modifications almost always fail the CURE test.
Exam Tip
Look for keywords indicating major structural work needed (walls, plumbing relocation, room reconfiguration) - these typically signal incurable functional obsolescence.
Common Mistakes to Avoid
- -Confusing functional obsolescence with physical deterioration
- -Assuming all functional problems are curable
- -Not considering the economic test when determining curability
Concept Deep Dive
Analysis
This question tests understanding of the three types of depreciation in real estate appraisal: physical deterioration, functional obsolescence, and external obsolescence. Functional obsolescence occurs when a property's design or features are outdated or inadequate compared to current market standards. The key distinction between curable and incurable functional obsolescence is whether the cost to fix the problem would be economically justified by the resulting increase in property value. Poor floor plans typically require major structural modifications involving walls, plumbing, and electrical systems, making them extremely expensive to correct.
Background Knowledge
Appraisers must understand the three types of depreciation to properly estimate property values using the cost approach. Functional obsolescence specifically relates to design inadequacies or outdated features within the property itself, while the curable vs. incurable distinction depends on economic feasibility of corrections.
Real-World Application
In practice, appraisers encounter homes with choppy floor plans from the 1950s-60s that buyers find undesirable, but the cost to create open floor plans would require removing load-bearing walls and major renovations costing $50,000+ while only adding $20,000 in value.
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